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Structure-based discovery of SIAIS001 as an oral bioavailability ALK degrader constructed from Alectinib

机译:SIAIS001的基于结构的发现作为由邻接in构建的口服生物利用度Alk降解剂

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Fusion proteins of the anaplastic lymphoma kinase (ALK) are promising therapeutic targets for cancer and other human diseases, especially for non-small cell lung cancer (NSCLC) and anaplastic large-cell lymphomas (ALCLs). We described herein a structure-based design, synthesis, and evaluation of ALK PROTACs (proteolysis-targeting chimeras) based on Alectinib as the warhead. We firstly screened CRBN ligands as the E3 ligase moiety, then obtained a series of potent ALK degraders based on different CRBN ligands, exemplified by SIAIS091 and SIAIS001 with lenalidomide/thalidomide- based linkers. Both of them induced effective ALK degradation at low nanomolar concentrations in cells, and showed much better growth inhibition effects than Alectinib. SIAIS091 or SIAIS001 also promoted cell cycle arrest in G1/S phase. Finally, SIAIS001 exhibited good oral bioavailability in Pharmacokinetics study. (C) 2021 Elsevier Masson SAS. All rights reserved.
机译:间变性淋巴瘤激酶(ALK)融合蛋白是治疗癌症和其他人类疾病,特别是非小细胞肺癌(NSCLC)和间变性大细胞淋巴瘤(ALCLs)的理想靶点。我们在此描述了基于结构的设计、合成和评估基于阿来替尼作为弹头的ALK-PROTACs(蛋白水解靶向嵌合体)。我们首先筛选了CRBN配体作为E3连接酶部分,然后基于不同的CRBN配体获得了一系列有效的ALK降解剂,例如SIAIS091和SIAIS001,以及基于来那度胺/沙利度胺的连接物。在低纳摩尔浓度下,二者均能诱导细胞内ALK的有效降解,并且显示出比阿来替尼更好的生长抑制效果。SIAIS091或SIAIS001也促进细胞周期阻滞在G1/S期。最后,在药代动力学研究中,SIAIS001表现出良好的口服生物利用度。(c)2021爱思唯尔马松SAS。版权所有。

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